GETCO Exam Paper (30-11-2008)
In a dry type transformer, accumulation of dust on the windings and core is likely to cause

reduction in heat dissipation
short circuiting of primary winding
corrosion of core material
short circuiting of secondary winding

ANSWER DOWNLOAD EXAMIANS APP

GETCO Exam Paper (30-11-2008)
The function of a breather in a transformer is

to arrest flow of moisture into the tank
to suppress harmonics
to control the level of oil in the tank
to provide protection against over currents

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP